Cutting-roller for tube-cleaners



' (No Model.) Y

W. F. B'RADBURY. CUTTING ROLLER FOR T UBB GLEANERS.

No. 532,358. Patented Jan. 8, 1895.

, vUNITED STATESPATENT FFICE.

WILLIAM F. BRADBURY, OF KANSAS CITY, MISSOURI.

QUTTING=ROLLER YFOFI 'TUBE-CLEANERS.

sPEcIFIcA'rIoN forming part of Letters Patent No. 532,358, dated January s, 1895.'

Application led May 5,1894. Serial No. 510,202. '(No model.)

To all zzz/'wm it' may concern.:

Be it known that I, WILLIAM'F. BRADBURY, of Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Cutting-Rollers for Tube-Cleaners, of whichthe following is a bered 507,965, were issued to me Cctober 31,`

1893.; and my invention consists in certain features of novelty hereinafter described and Y pointed out in the claims.

Figure I,- represents a longitudinal section of a boiler tube with a tube cleaner therein provided with my improved cutting rollers and showing also the scale formed in the tube. Fig. 11,-- represents a cross section on the line II-II of Fig. I. Fig. III,- represents my irnproved cutting roller. Fig. IV,-- represents a cross section on the line IV-IV of Fig. III.

- Similar numerals refer to similar parts throughout the several views.

1,- represents a cross section of a boiler tube. 2,- is the scale formed therein. 3,- is the rigid head to which a series of cutting rollers 4, are journaled. The perimeter of the cutting roller is provided with the cutting edgesv 5, alternating with the abruptly terminating disintegrating blunt portions 6.

The cutting edges may be made concave as shown or otherwise as may be desired. They are beveled as shown in Fig. IV, and where joining the blunt portions do not reach quite to the perimeter leaving an acute disintegrating angle as shown at 7 in Fig. IV. 8 is the body of the cuttingroller.V

The advantages of my new improvement are that by providing the blunt disintegrating portion 6, I avoid cutting the tube which frequently happens with a cutting disk having a cutting edge upon its entire perimeter. I

Vfind also that with such disintegrating blunt portion alternating with the cutting edges the cutting roller acts more forcibly and effectually upon the incrustation of the tube and more lfully breaking up its adhesion thereto.

Havingthus. fully described myimprovement, what I claim as my invention, and def sire to secure by Letters Patent, is

l. Acutting roller for tube cleaners having upon its perimeter cutting edges alternating with abruptly terminating disintegrating blunt portions; substantially as shown and de scribed and for the purpose specified.

2. A cutting roller for tube cleaners having upon its perimeter cutting edges alternating with blunt disintegrating portions the cutting edges where joining the blunt portion notl reaching to the perimeter thereof, but leaving an acute disintegrating angle; substantially as shown and described and vforthe purpose specified.

3. Acutting roller for tube cleaners consisting of a body, cutting edges upon the perim- 7o eter thereof and blunt disintegrating portions alternating with the cutting edges; substantially as shown and described and for the purpose specified.

4. In a tube cleaner .the combination of a 75 rigid head with cutting rollers journaled therein, cutting edges upon the perimeter of the roller and blunt disintegrating portions alternating with the cutting edges; substantially as shown and described and for the pur- 8o `pose specified.

WILLIAM F. BRADBURY.

Witnesses:

A. C. BROWN, M. O. FIELDS. 

